除了隐藏地址之外，隐蔽的电子邮件使用者还常常使用一个或多个免费的电子邮件服务，他们将这些地址作为“用完即弃”的地址。
In addition to hiding addresses, a secretive e-mailer often USES one or more of the free E-mail services for "throwaway" addresses.
今年早些时候，它给Facebook(一个社交网络网站)的使用者提供免费的一个华堡，前提是他们抛弃10个网上的朋友。
Earlier this year it offered users of Facebook, a social-networking website, a free Whopper burger if they would dump ten of their online friends.
苹果的App商店以其提供数以千记的应用软件拓展而闻名，有些是免费 的，它们可以让使用者自己检查身体状况，美化手机，玩游戏等等。
The Apple App Store is famous for offering hundreds of thousands of apps, many for free, that allow users to track their health, paint on their phones, play games, and much more. Cost: $299
应用推荐